title: Study on method to simulate light propagation on tissue with characteristics of radial-beam LED based on Monte-Carlo method.
abstract: In biomedical, Monte-carlo simulation is commonly used for simulation of light diffusion in tissue. But, most of previous studies did not consider a radial beam LED as light source. Therefore, we considered characteristics of a radial beam LED and applied them on MC simulation as light source. In this paper, we consider 3 characteristics of radial beam LED. The first is an initial launch area of photons. The second is an incident angle of a photon at an initial photon launching area. The third is the refraction effect according to contact area between LED and a turbid medium. For the verification of the MC simulation, we compared simulation and experimental results. The average of the correlation coefficient between simulation and experimental results is 0.9954. Through this study, we show an effective method to simulate light diffusion on tissue with characteristics for radial beam LED based on MC simulation.
authors.forename: Sangha
authors.initials: S
authors.lastname: Song
authors.forename: Inko
authors.initials: I
authors.lastname: Elgezua
authors.forename: Yo
authors.initials: Y
authors.lastname: Kobayashi
authors.forename: Masakatsu G
authors.initials: MG
authors.lastname: Fujie
mesh_terms: D003198:Computer Simulation; D004581:Electronics; D008027:Light; D009010:Monte Carlo Method; D009928:Organ Specificity; D019047:Phantoms, Imaging; D017785:Photons